CVE-2021-1675 — Windows Print Spooler Remote Code Execution Vulnerability
Windows Print Spooler Remote Code Execution Vulnerability
Published
2021-06-08T23:15:08.267
Last modified
2026-08-12T05:17:31.927
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA KEV — Actively Exploited
01What is this vulnerability?
Windows Print Spooler Remote Code Execution Vulnerability
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Yes — actively exploited. Added to the CISA KEV catalog on 2021-11-03. Ransomware use: Known.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:
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07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2021-06-08T23:15:08.267
- Last modified: 2026-08-12T05:17:31.927
- Added to CISA KEV: 2021-11-03
09References
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